"""同一意图不可重复排队，重试必须保留原始批次和范围。"""

from uuid import uuid4

import pytest
from sqlalchemy import func, select

from app.core.exceptions import BadRequestError
from app.models import TPlusSyncBatch, TPlusSyncError
from app.schemas.tplus import TPlusCreateIn, TPlusRetryIn
from app.services.tplus import task_service


def _create(**kwargs):
    return TPlusCreateIn(request_key=uuid4(), entity_types=["products"], **kwargs)


def test_同键同意图复用同一批次(tplus_session):
    request = _create()
    first = task_service.create_task(tplus_session, request)
    second = task_service.create_task(tplus_session, request)
    assert first.id == second.id
    assert first.status == "QUEUED"
    assert first.started_at is None
    assert first.entity_types_json == ["products"]
    assert tplus_session.scalar(select(func.count()).select_from(TPlusSyncBatch)) == 1


def test_同键不同范围拒绝(tplus_session):
    request = _create()
    task_service.create_task(tplus_session, request)
    changed = TPlusCreateIn(request_key=request.request_key, entity_types=["personnel"])
    with pytest.raises(BadRequestError, match="幂等"):
        task_service.create_task(tplus_session, changed)


def test_失败重试创建新批次并保留原错误(tplus_session):
    parent = task_service.create_task(tplus_session, _create())
    parent.status = "FAILED"
    tplus_session.add(
        TPlusSyncError(
            batch_no=parent.batch_no,
            entity_type="products",
            source_table="AA_Inventory",
            error_code="READ_ERROR",
            error_message="读取失败",
        )
    )
    tplus_session.commit()
    retry = TPlusRetryIn(request_key=uuid4())
    child = task_service.retry_task(tplus_session, parent.batch_no, retry)
    replay = task_service.retry_task(tplus_session, parent.batch_no, retry)
    assert child.id == replay.id and child.id != parent.id
    assert child.parent_batch_no == parent.batch_no
    assert parent.status == "FAILED"
    assert tplus_session.scalar(select(TPlusSyncError.retry_count)) == 1


def test_已有未完成重试时不重复排队(tplus_session):
    parent = task_service.create_task(tplus_session, _create())
    parent.status = "FAILED"
    tplus_session.commit()
    task_service.retry_task(tplus_session, parent.batch_no, TPlusRetryIn(request_key=uuid4()))
    with pytest.raises(BadRequestError, match="重试任务"):
        task_service.retry_task(tplus_session, parent.batch_no, TPlusRetryIn(request_key=uuid4()))


def test_成功或未知历史范围不能自动重试(tplus_session):
    parent = task_service.create_task(tplus_session, _create())
    parent.status = "SUCCEEDED"
    tplus_session.commit()
    with pytest.raises(BadRequestError):
        task_service.retry_task(tplus_session, parent.batch_no, TPlusRetryIn(request_key=uuid4()))
    parent.status, parent.entity_types_json = "FAILED", None
    tplus_session.commit()
    with pytest.raises(BadRequestError, match="范围"):
        task_service.retry_task(tplus_session, parent.batch_no, TPlusRetryIn(request_key=uuid4()))


def test_关联核验不需要读取实体范围(tplus_session):
    batch = task_service.create_task(
        tplus_session, TPlusCreateIn(task_type="AUDIT", request_key=uuid4())
    )
    assert batch.sync_mode == "AUDIT"
    assert batch.entity_types_json == []


def test_预留增量批次不得静默改为全量重试(tplus_session):
    batch = task_service.create_task(tplus_session, _create())
    batch.status, batch.sync_mode = "FAILED", "INCREMENTAL"
    tplus_session.commit()
    with pytest.raises(BadRequestError, match="方式"):
        task_service.retry_task(tplus_session, batch.batch_no, TPlusRetryIn(request_key=uuid4()))